EP 3385442 A1 20181010 - METHOD OF RPODUCING A HIGHLY STRETCHABLE PAPER
Title (en)
METHOD OF RPODUCING A HIGHLY STRETCHABLE PAPER
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES HOCHDEHNBAREN PAPIERS
Title (fr)
PROCÉDÉ DE PRODUCTION D'UN PAPIER HAUTEMENT ÉTIRABLE
Publication
Application
Priority
EP 17165151 A 20170406
Abstract (en)
There is provided a method of producing a paper having a grammage according to ISO 536 of 50-250 g/m 2 , a Gurley value according to ISO 5636-5 of above 15 s and a stretchability according to ISO 1924-3 in the machine direction of at least 9 %, said method comprising the steps of: a) providing a pulp, preferably sulphate pulp; b) subjecting the pulp to refining; c) diluting the pulp from step b) and adding the diluted pulp to a forming wire to obtain a paper web; d) pressing and the paper web from step c); e) drying the paper web from step d); f) compacting the paper web from step e) in a Clupak unit at a moisture content of 32-50 %, preferably 37-49 %, more preferably 41-49 %; g) calendering the paper web from step f), optionally after drying, at a moisture content of 21-40 %, preferably 30-40 %, more preferably 32-39 %; h) drying the paper web from step g).
IPC 8 full level
D21F 11/02 (2006.01); D21G 1/00 (2006.01); D21H 27/10 (2006.01)
CPC (source: EP RU US)
D21F 11/02 (2013.01 - EP RU US); D21G 1/00 (2013.01 - EP RU US); D21H 27/10 (2013.01 - EP US)
Citation (search report)
- [A] DE 102010029580 A1 20111201 - VOITH PATENT GMBH [DE]
- [A] EP 2186939 A2 20100519 - VOITH PATENT GMBH [DE]
- [A] WO 2016083170 A1 20160602 - VOITH PATENT GMBH [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3385442 A1 20181010; EP 3385442 B1 20190424; AU 2018248869 A1 20190314; AU 2018248869 B2 20230601; BR 112019018027 A2 20200324; BR 112019018027 B1 20230404; CA 3048287 A1 20181011; CN 110300825 A 20191001; CN 110300825 B 20220325; EP 3607137 A1 20200212; PL 3385442 T3 20191231; RU 2019122477 A 20210506; RU 2019122477 A3 20210714; RU 2764422 C2 20220117; US 11339535 B2 20220524; US 2020181843 A1 20200611; WO 2018185215 A1 20181011
DOCDB simple family (application)
EP 17165151 A 20170406; AU 2018248869 A 20180405; BR 112019018027 A 20180405; CA 3048287 A 20180405; CN 201880009930 A 20180405; EP 18714290 A 20180405; EP 2018058716 W 20180405; PL 17165151 T 20170406; RU 2019122477 A 20180405; US 201816500319 A 20180405